Safety-stirrup.



Gr KALL. SAFETY STFRRUP. APPLICATION man 00]. w, 19: 6.

' Patented Au 20,1918.

In: mamas Pcrsns OQFHDYQ-LIHIOQWAMINGWN. n. c.

FFTQ

GUSTAV KALL, OF ALEXANDRIA BAY, NEW YORK.

SAFETY-STIRRUP.

Application filed October 10, 1916.

To all w 7mm it may concern:

Be it known that I, GUSTAV KAL a citi- Zen of the United States, residing at Alexandria Bay, in the county of Jefiierson and State of New York, have invented certain useful Improvements in Safety-Stirrups, of which the following is a specification, reference being had therein to the accompanying drawing.

The invention relates to stirrups and more particularly to the class of safety stirrups.

The primary object of the invention is the provision of a stirrup of this character wherein on the engagement of the foot of the rider therein should the rider become thrown from a mount the foot will be automatically released from the stirrup thereby avoiding injury to the rider resulting from the hanging of the foot within the stirrup.

Another object of the invention is the provision of a stirrup of this character wherein the construction thereof is of novel form so that the foot of the rider will have a firm support within the stirrup and should it be necessary to release the foot therefrom the same will be automatically freed thereby avoiding the hanging of the foot or its retention within the stirrup.

A further object of the invention is the provision of a stirrup of this character which is simple in construction, thoroughly reliable and efficient in its operation, automatically opened for the freeing of the foot when engaged therein at the proper time should the rider be thrown from a mount, strong, durable and inexpensive in manufacture.

With these and other objects in view the invention consists in the features of construction, combination of elements, and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and pointed out 1n the claim hereunto appended.

In the accompanying drawings:

Figure 1 is a front elevation of a stirrup constructed in accordance with the invention.

Fig. 2 is a bottom plan view thereof.

Fig. 8 is an elevation showing the stirrup open for releasing the foot.

Fig. 4 is an edge elevation thereof.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Specification of Letters Patent.

Patented Aug. 20, 1918.

Serial No. 124,843.

Referring to the drawing in detail the stirrup comprises a frame 10 which is substantially inverted U-shaped, preferably made from metal although it may be made from any other suitable material and is formed medially thereof with a hole or slot 11 for the reception of the stirrup strap as usual.

Arranged in the frame 10 at the open end thereof is a tread plate 12 which is of substantially segmental shape and is formed with upstanding arms 13 provided with trunnions or pivot studs 14 which are journaled in the ends of the side limbs of the frame 10 for swingingly mounting the tread plate 12 therein.

Swingingly mounted. in the upstanding arms 13 on the thread plate 12 are upwardly bowed guard members or jaws 15 which when closed form a yoke for the foot of a rider when resting upon the tread plate 12, one jaw 15 being formed in its free end with a socket 16 while the other jaw is formed at its free end with a keeper lug 17 for engagement in the socket 16 when both jaws 15 are closed and in normal position in vertical alinement with the frame 10 as shown in Fig. 1 of the drawing. On the swinging of the tread plate 12 or the turning thereof within the frame 10 to the position shown in I Fig. 2 of the drawing the jaws 15 will automatically open thereby freeing the foot of the rider resting upon the tread plate 12 should the rider be thrown from a mount.

Formed on the inner faces of the side limbs of the frame 10 in the path of the swinging movement in one direction of the tripping tread plate 12 with its releasing jaws 15 are stops 18 against which engage the upstanding arms 13 of the tread plate 12 so as to limit the swinging of the tread plate and permit the alinement of the jaws 15 with the frame 10 when the tread plate is in normal position for the use of the stirrup in the usual manner. The jaws 15 are provided with integral projecting shoulders 19 which overhang the upper edges of the stops 18 when the jaws are in their normal position and in alinement with the frame 10. These shoulders 19 continue to engage the upper edges of the stops 18 even after the jaws 15 are moved at a considerable angle from the frame 10 and these shoulders 19 operate to keep the two jaws 15 in engagement with each other until the shoulders evee go have been entirely t'reed from the upper edges of the stops 18. This ar'angement permits the tread plate 12 to be moved on its trunnious the usual angular distance which i the pressure of the foot Will impart to the tread during the use of the stirrup and thereby precludes the two jaws 15 separating and being brought together by movement in and out of the frame 10.

In the use of the stirrup should the foot of the rider exert a backward pull upon the closed jane 15 constituting the tripping yoke of. the tread plate 12 of the stirrup when being thrown tron: an animal the tread plate 12 will be turned on its axis from the position shoe-n in 1 to tne position shown in 2' of the drawin and the Weight of the toot upon the jaws r5 will cause the automatic opening thereof for the freeing of the foot as w ll be aprniren, thereby avoiding l 1e pos: )ilit-y of the hanging ot he toot within the stirrup which would necessarily result in injury to the rider.

From the foregoing it is thought that the auction and manner of use of the rup will be elearq; ui'iderstood and therefore a more extended explanation has been omitted.

503x122 el s.

l i'hatis claimed is:

i stirrup of the class described oomprie ing an inverted substantially U shaped frame, a segmental sha ed tread plate having a straight edge and having upstanding arms projecting from its top t'aee adjacent to the ends of its steight edge, the upstanding arms being provided with trunnions which pivotally engage the free ends of the limbs of the U-shaped frame, the frame having stops formed on the inner edges of its limbs, and pair of interconnecting yoke jaws bri the tread plate and pirotally connected with the upstanding arms on one aide. thereof, whereby the pivoted ends of brought against the stops on the jaws are p the back. taoes ot the latter the jaws hating abutment shoulders over-hangi" and engaging the to edges of the stops to preeluee pivotal movement of the when in nor mal pesitien, the tread plate h Wing its straight edge adjacent to but to one side of its axis of pivotal movement, thereby reducing the tendency to rock the plate when it 12 eng ged by the toot of a ruler.

In testunon whereof I eliix my signature.

KALL.

.n the ilernmissiezzer 

